英文關鍵字
action
arc
background
bright
casting
create
crucible
danger
factory
fiery
flame
flow
foundry
furnace
glow
glowing
heat
heavy
high
hot
industrial
industry
intense
interior
iron
ironworks
liquid
man
manufacture
manufacturing
melting
metal
metallurgical
metallurgy
mill
molten
orange
people
plant
red
slag
smelting
sparks
steam
steel
steelworks
stream
technology
temperature
work